Oops, it doesn't look like 'preety girl day' is a national day..

Other days

bubble bath

Bubble Bath Day
boyfriend

Boyfriend Day
hoodie

Hoodie Day
bow tie

Bow Tie Day
singles

Singles Day
prosecco

Prosecco Day
slime

Slime Day
blanket fort

Blanket Fort Day
ormille

Ormille Day
aloxolt

Aloxolt Day